1 tbs olive oil
1 med yellow onion, chopped
2 (15.5 oz) cans navy beans OR great northern beans, drained & rinsed
1/2 cup pure maple syrup
1 tsp dry mustard
1/2 tsp salt
1/4 tsp freshly ground black pepper
1/4 cup tomato paste mixed with 1 1/4 cups hot water

heat the oil in a lg skillet over medium heat. add the onion, cover, & cook until softened, about 5 minutes.

transfer the onion to a 3 1/2-4 qt slow cooker. add the beans, maple syrup, mustard, salt & pepper. pour in the tomato paste mixture, cover, & cook on LOW for 6-8 hours.

4 servings