Spiced Dominican Mangu with Sautéed Onions

By AislePrompt Editorial · Published 2026-06-10 · Updated 2026-06-10

Traditional Dominican mashed plantains seasoned with garlic and topped with sweet sautéed red onions for a flavorful breakfast or side dish. This Latin American-inspired recipe, ready in about 40 minutes, combines green plantains, water, salt into a breakfast that fuels the morning without the midday crash — make-ahead-friendly and balanced enough to anchor the first meal of the day. Each serving lands at about 250 calories and feeds 4, so it sits comfortably in a weekly breakfast rotation alongside fruit, yogurt, or coffee. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 3 medium, peeled and sliced green plantains
• 4 cups water
• 1 tsp salt
• 2 minced garlic cloves
• 2 tbsp olive oil
• 1 medium, thinly sliced red onion
• 1 tbsp white vinegar
• 1/4 tsp black pepper
• 2 tbsp butter

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: In a large pot, bring 4 cups water and 1 tsp salt to a boil. Add 3 peeled and sliced green plantains and cook for 20-25 minutes until very tender when pierced with a fork.
2. Step 2: Drain the plantains, reserving 1/2 cup cooking water. Mash plantains with 2 tbsp butter and 2 minced garlic cloves, adding reserved water gradually to achieve a smooth, creamy texture.
3. Step 3: In a skillet, heat 2 tbsp olive oil over medium heat. Add 1 medium thinly sliced red onion and sauté for 5 minutes until soft.
4. Step 4: Stir in 1 tbsp white vinegar and 1/4 tsp black pepper, cooking for an additional 2 minutes until onions are caramelized and tangy.
5. Step 5: Serve the mashed plantains topped with the sautéed onions for a savory, traditional Dominican dish.