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A baking dish of cranberry bean gratin, with a serving scooped out, and a plate with a scoop and some of the gratin in the background

Instant Pot Cranberry Bean Gratin

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5 from 2 reviews

  • Author: Mike Vrobel
  • Total Time: 2 hours 15 minutes
  • Yield: 8 servings 1x


Instant Pot Cranberry Bean Gratin. A hearty bake of beans and vegetables, topped with a bread crumb crust, with extra flavor from homemade pressure cooked cranberry beans.



Cranberry Beans

  • 8 ounces dried cranberry beans (aka borlotti beans)
  • 2 cloves garlic, crushed
  • 1 teaspoon fine sea salt
  • 1 sprig fresh rosemary (or a bay leaf)
  • 4 cups water


  • 2 tablespoons olive oil
  • 1 medium onion, diced
  • 1 stalk celery, diced
  • 1 medium carrot, diced
  • 3 cloves garlic, sliced thin
  • 1 teaspoon minced fresh rosemary
  • 1 teaspoon minced fresh thyme
  • ½ teaspoons fine sea salt
  • 14.5-ounce can petite diced tomatoes
  • 2 tablespoons olive oil
  • ¾ cup panko bread crumbs


  1. Pressure cook the beans for 40 minutes with a quick release: Sort and rinse the cranberry beans, removing broken beans, stones, and any other non-bean material. Add the beans, water, salt, and rosemary to an Instant Pot or other pressure cooker. Lock the lid and pressure cook on high pressure (Manual or Pressure cook Mode in an Instant Pot) for 40 minutes, then quick release the pressure in the pot. Drain the beans, saving both the beans and their liquid for later.
  2. Sauté the aromatics and simmer everything: Set the oven to 350°F. Heat the olive oil in a large frypan over medium heat until the oil is shimmering. Ad the onion, celery, carrot, and garlic to the pan, and sprinkle with the minced rosemary, thyme, and salt. Sauté, stirring often, until the onions soften, about 5 minutes. Stir in the diced tomatoes and the drained beans, and bring to a simmer. Pour the frypan of beans and aromatics into a 2-quart baking dish, then add the reserved bean liquid until it comes ¾ of the way up the beans. Drizzle 2 tablespoons of olive oil over the beans, then spreadthe panko bread crumbs over the top in an even layer.
  3. Bake the gratin: Slide the baking dish into the oven and bake until the bread crumbs start to brown on the top, about 30 minutes. Serve and enjoy!


Make ahead: You can pressure cook the beans ahead of time. Store them in their liquid in the refrigerator for up to 3 days, or frozen for up to 6 months

  • Prep Time: 15 minutes
  • Cook Time: 2 hours
  • Category: Side dish
  • Method: Pressure Cooker
  • Cuisine: American