Chipped beef and gravy

1 stick of butter
1/2 cup flour
4 cup milk
4 1/2 oz dried beef
1 ground black pepper to taste

INSTRUCTIONS :
-In a medium sauce pan melt butter
-Whisk in flour, cook on medium-high for a minute to cook the flour
-Whisk in the milk, lower heat to medium..whisking occasionally.
-Mixture will thicken as it starts to boil. Take off heat when it comes to a boil
-Stir in chopped dried beef and ground pepper
-Serve over biscuits, toast, or mashed potatoes

Note :
– I use the dried beef in a jar found in grocery isle by canned tuna