Quick Pineapple Chicken - cooking recipe

Ingredients

3/4 cup onion, chopped
1/4 cup butter, melted
2/3 cup ketchup
1 tablespoon prepared mustard
1 teaspoon dry mustard
1/2 teaspoon salt
1/4 teaspoon red pepper flakes
1 (20 ounce) can pineapple chunks
1 lb skinless chicken breast

Preparation

Combine first 8 ingredients and mix together in baking dish.
Add chicken, turning to coat.
Bake at 350 for 25-30 minutes.