Slow Cooker Chipotle Tacos recipe is easy and has an unusual list of ingredients. You would never guess. Put them all in a crock pot and when done - Mmmm. Ingredients 2 (15 oz.) cans Pinto Beans, drained 1 cup corn kernals, canned, frozen or fresh 1 (7 oz.) can chipotle peppers in adobo sauce, chopped 1 (6 oz.) can tomato paste 3/4 cup Chili Sauce 1 Tablespoon Unsweetened Cocoa Powder 1 teaspoon Ground Cumin 1/2 teaspoon Ground Cinnamon 1/2 teaspoon salt