Baccalà in Umido (Salt Cod Stew with Tomato and Olives)
Tender salt cod braised in a rustic tomato sauce with briny olives and capers — a naturally low-glycemic, high-protein Italian classic with minimal carbs.
This Baccalà in Umido is one of those rare dishes that tastes deeply indulgent yet lands remarkably gently on your blood sugar. Salt cod provides a dense hit of protein with virtually zero carbohydrate, while the slow-simmered tomato sauce delivers lycopene and fibre without the glycemic load of starchier accompaniments. The olives and olive oil supply heart-healthy monounsaturated fats that further slow glucose absorption, making this stew an ideal main course for anyone managing blood sugar.
The beauty of this recipe lies in its simplicity. A soffritto of onion and garlic forms the aromatic base, deglazed with a splash of dry white wine whose sugars cook off almost entirely. Canned whole tomatoes are crushed by hand — a small effort that yields a far better texture than pre-chopped — and enriched with briny capers and halved taggiasca or kalamata olives. The cod nestles into this sauce and gently poaches until it flakes apart, absorbing all those savoury Mediterranean flavours.
For optimal blood sugar management, serve the stew as-is or over a bed of cauliflower mash or sautéed greens rather than traditional polenta. Eating the protein-rich cod first, followed by the vegetable-based sauce, can further blunt any postprandial glucose rise. The dish reheats beautifully the next day — the flavours only deepen — so consider doubling the batch for effortless meal prep. Just remember to plan ahead: the salt cod needs 24 to 48 hours of soaking in cold water, changed several times, to draw out the excess salt before cooking.
Blood Sugar Impact
Very low blood sugar impact expected. With a GI of 29 and glycemic load of only 5.8, this protein-rich stew with healthy fats from olive oil and olives will produce a minimal, slow glucose rise and provide stable energy for 3-4 hours.
Blood Sugar Tips
- ✓ Serve over a bed of leafy greens or cauliflower rice instead of bread, pasta, or white rice to keep the glycemic load low.
- ✓ Eat the cod and vegetables first before any starchy side dish you may pair it with, as the protein and fat will slow subsequent glucose absorption.
- ✓ Enjoy a short 10-15 minute walk after the meal to further blunt any minor blood sugar rise from the tomatoes and wine in the sauce.
🥗 Ingredients
- 350 g Salt cod fillet
- 2 tbsp Extra-virgin olive oil
- 1 pcs Yellow onion
- 2 pcs Garlic clove
- 0.25 tsp Red pepper flakes
- 60 ml Dry white wine
- 400 g Whole peeled tomato
- 50 g Black olive
- 20 g Caper
- 10 g Flat-leaf parsley
- 0.5 tsp Black pepper
- 12.3 oz Salt cod fillet
- 2 tbsp Extra-virgin olive oil
- 1 pcs Yellow onion
- 2 pcs Garlic clove
- 0.25 tsp Red pepper flakes
- 4 tbsp Dry white wine
- 14.1 oz Whole peeled tomato
- 1.8 oz Black olive
- 0.7 oz Caper
- 0.4 oz Flat-leaf parsley
- 0.5 tsp Black pepper
👨🍳 Instructions
- 1
Remove the soaked salt cod from its final water bath, pat it thoroughly dry with kitchen paper, and cut the fillet into roughly 4–5 cm chunks. Set them aside on a plate.
- 2
Warm the extra-virgin olive oil in a wide, heavy-based pan or shallow casserole over medium heat. Add the diced onion and cook gently, stirring now and then, for about 5 minutes until it turns soft and translucent without taking on any colour.
- 3
Scatter the sliced garlic and red pepper flakes into the pan. Stir continuously for about 1 minute until the garlic is fragrant and just starting to turn golden at the edges.
- 4
Pour in the dry white wine and allow it to bubble vigorously for 1–2 minutes, scraping up any caramelised bits from the base of the pan, until the liquid has almost completely evaporated.
- 5
Tip the canned whole tomatoes into the pan and crush them by hand directly in the sauce — this gives a more rustic, uneven texture than using pre-chopped tomatoes. Stir in the halved olives and rinsed capers, then bring the mixture to a gentle simmer.
- 6
Carefully nestle the pieces of salt cod into the simmering sauce, spooning a little sauce over the top of each piece. Place the lid on the pan, reduce the heat to low, and let the stew cook at a bare simmer for 20 minutes.
- 7
Remove the lid and check the cod — it should flake easily when pressed with a fork and the sauce should have thickened and reduced. If the sauce is still quite loose, simmer uncovered for a further 3–5 minutes to concentrate the flavours.
- 8
Take the pan off the heat, scatter generously with the chopped flat-leaf parsley and several grinds of black pepper. Serve straight from the pan, spooning the thick tomato sauce around and over the fish.
📊 Nutrition Per Serving
| Per Serving | Whole Dish | |
|---|---|---|
| Calories | 765 | 1530 |
| Carbs | 20g | 40g |
| Sugars | 11g | 21g |
| Natural Sugars | 11g | 21g |
| Protein | 112g | 225g |
| Fat | 20g | 41g |
| Saturated Fat | 3g | 6g |
| Unsaturated Fat | 17g | 34g |
| Fiber | 5g | 10g |
| Soluble Fiber | 2g | 3g |
| Insoluble Fiber | 4g | 7g |
| Sodium | 12898mg | 25796mg |
Predicted Glucose Response
What if you...
Estimated model — individual responses vary. Not medical advice.
🔄 Lower GI Swaps
Jarred peeled tomatoes often contain added sugars that raise glycemic load. Fresh tomatoes have a very low GI (~15) and no hidden sugars, keeping blood sugar impact minimal. If using canned, choosing a no-sugar-added variety eliminates the added glucose.
White wine contains residual sugars (typically 1-3 g per 100 ml) that contribute to glycemic load. Dry vermouth has lower residual sugar and is used in smaller quantities. Stock-based alternatives add zero sugar while maintaining the deglazing function and acidity that the dish needs.
White onions have a moderate GI (~50-60 when cooked) and higher natural sugar content (~7 g per 100 g) compared to spring onions (~2 g per 100 g, GI ~32). Slow-cooking onions further concentrates their sugars via caramelization, amplifying the glucose spike. Spring onions and leek greens deliver allium flavor with a significantly lower sugar load.
🔬 The Science Behind This Recipe
Why This Recipe Works for Blood Sugar
Baccalà in Umido is a naturally blood-sugar-friendly dish, and the secret starts with its star ingredient: salt cod. Fish is a pure protein source with virtually no carbohydrates, which means it has almost no direct impact on your blood sugar. But protein does something even more helpful — it slows down the rate at which your stomach empties, meaning any carbohydrates you eat alongside it (like the natural sugars in tomatoes and onions) are absorbed much more gradually. Think of protein as a speed bump on the road to your bloodstream. The result is a gentle, steady rise rather than a sharp spike and crash.
The generous use of olive oil in this stew adds another powerful layer of protection. Healthy fats work similarly to protein by slowing digestion, but they also help your cells respond better to insulin over time. When fat coats the other foods in your meal, it creates a buffer that further smooths out glucose absorption. This is why pairing carbohydrates with fat — drizzling olive oil on bread, for example — consistently produces a smaller blood sugar response than eating those carbs alone. In this recipe, the olive oil does that work for you in every bite.
With a glycemic load of just 5.8 per serving, this stew lands firmly in the "low" category (anything under 10 is considered low). Remember, glycemic load accounts for both the type and the amount of carbohydrates in a serving — it gives you the full picture, not just a rating of the carb type. To make this meal work even harder for you, try eating the stew before any side of bread or grain, and consider a short 10–15 minute walk after eating. Both strategies have been shown to significantly reduce post-meal glucose rises, helping you feel energized rather than sluggish long after the meal is done.
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