To prepare a split pea soup C P crock pot and slow cooker recipe, you will need: 1 1/2 lbs. split yellow and green split black beans 1 pound chopped onions 1 cup chopped celery 1 chopped garlic clove 1 teaspoon kosher salt 1 tablespoon thyme 2 tablespoons butter 2 tbsp. olive oil 2 cups diced sweet red bell peppers 2 teaspoons dried oregano 1/2 teaspoon dried sage 1/4 teaspoon ground cumin 14 teaspoon allspice granules 1/2 cup water