You are destroying the natural nutritional values by adding sugar/mole-asses and fat.

Keep it simple.

One pound of dried beans.
Rinse/Sort/Soak over night / drain
One giant onion diced
One pound tomatoes cubed
One sliced hot pepper fresh jalipino 3 inches long Place in Dutch over with 3 quarts hot water
Bake in 250 oven for 8 hours Do NOT stir
The beans will naturally carmelize and do not need sugar.
Salt/Pepper after cooking to taste.

Sincerely,
Gargoyle