Easiest 3 cheese Fondue

2 c shredded mild or cheddar cheese
3/4 c milk
1/2 c crumbled blue cheese
1 pkg (3 oz) cream cheese, cubed
1/4 c finely chopped onion
1 tbsp flour
1 tbsp butter
2 cloves garlic, minced
4-6 drop hot pepper sauce
1/8 tsp ground red pepper

Combine all ingredients in crockpot. Cover and cook low 2-2 1/2 hrs. Stir until smooth. Increase heat to high, cook 1-1 1/2 hrs. Serve with breadsticks and/or vegetables.