Preheat oven to 375F
In a small saucepan over medium heat, add brown sugar, preserves, mustard and vinegar
Cook down for about 3 minutes, until thickened into a glaze
Peel biscuits in half
In a greased 12-cup muffin tin, add one half of the biscuit and brush with glaze
Top with 2 to 3 ham slices, brush with more glaze
Top with cheese and finish with the remaining half of each biscuit
Brush with butter and bake until golden brown, about 12 minutes
Let cool in pan for 5 minutes and serve
