Quick and Easy Mushroom & Onion Sauce

• 2 (10 1/2 ounce) cans condensed French onion soup
• 1 teaspoon ground black pepper
• 1 tablespoon cornstarch
• 14 cup ketchup
• 2 teaspoons Worcestershire sauce, to taste
• 1 teaspoon mustard powder
• 12 cup water
• 4 tablespoons butter
• 1 cup sliced button mushroom

1. Heat a large skillet on medium heat.
2. Melt butter and add mushrooms.
3. Cook until golden brown, about 10-15 minutes.
4. Add ketchup, soup, pepper, mustard, Worcestershire sauce and whisk to combine.
5. Add corn starch to water and stir to combine.
6. Bring sauce to a boil and whisk in your water and corn starch mixture until desired thickness.
7. Remove from heat and let cool for 10 minutes.

condensed french onion, ground black pepper, cornstarch, ketchup, worcestershire sauce, mustard powder, water, butter, button mushroom

Taken from www.food.com/recipe/quick-and-easy-mushroom-onion-sauce-520821 (may not work)