Fudge Cookie Cups:
Cookie cup:
Make a basic chocolate or yellow cake mix cookie dough according to the directions in the first post of this thread. This dough will be for the cookie cups instead of flat cookies.
Pre-heat oven to 350°F.
Spray 24 mini muffin cups with non-stick cooking spray, or grease with shortening or butter. Divide cookie dough into 24 balls. Press down 1 ball in bottom and up side of each mini muffin cup, forming 1/4-inch rim above top of cup (sprinkle fingers with flour if necessary, or leave a little cake mix aside for this). Bake 10 to 15 minutes or until edges are golden brown. With tip of handle of wooden spoon, press dough down in center of each cup to make room for about 2 tablespoons filling. Or, you can also try dropping the muffin pans down hard on the counter, a couple of times, right out of the oven. The middles will sink. Cool in pans on cooling racks 5 minutes.
Fudge Filling:
1 (12-ounce) package of baking chips (any flavor: see below)
1 (16-ounce) can Pillsbury* frosting, any flavor (NOT WHIPPED.) *Pillsbury stays softer than B. Crocker, for a soft center
1/4 teaspoon salt
1/2 - 1 teaspoon vanilla extract
Toppings, (optional,) your choice: chopped nuts, or crushed granola bars, crumbled graham crackers, sprinkles.
Try extra chips sprinkled on. Place back in oven for a minute or two so the chips will soften, yet retain their shape.) See right picture above.
Or, you can also add on a dollop of fruit preserves, like strawberry, raspberry, orange marmalade, lemon curd, to get a nice, layered fudge & fruit cookie cup.
Directions:
Put one 12 ounce bag of any flavor baking chips in a glass bowl, spread them out so that they are not all in the middle of the bowl and they will melt easier. Cook in microwave for 1½ minutes. Take out and stir, then stir in one can frosting, stir really well and put back in microwave and cook for 1½ minutes. Take out, add 1 teaspoon vanilla and pinch of salt, and stir. Optional: add in nuts.
Drop by spoonfuls into the cookie cups. If fudge cools too much, heat for a few seconds in microwave oven again.
Chips and canned frosting combinations: 
(Any of these will also make a great, easy fudge. Just pour into a greased pan and let set.)
• Chocolate chips + chocolate frosting (this is for the die-hard chocolate-lovers)
• Chocolate chips + vanilla frosting (not as chocolately)
• Chocolate chips + chocolate fudge icing + pecans
• Chocolate chips + Cream Cheese frosting + chopped Macadamia nuts
• Dark chocolate chips + coconut pecan frosting (tastes like a Mounds bar.)
• Dark chocolate chips + coconut pecan frosting + chopped almond (tastes like an Almond Joy.)
• Milk chocolate chips + coconut pecan frosting (call it German Chocolate Fudge.)
• Caramel chips + chocolate frosting
• Mint chocolate chips + chocolate frosting (tastes like Andes mint.)
• Cherry chips + chocolate frosting (tastes like a chocolate covered cherry.)
• Cherry chips + White Chocolate Almond frosting. Top with toasted pecans.
• Butterscotch chips + coconut pecan frosting + any dry chopped fruit
• Vanilla chips + any flavor frosting
• Vanilla frosting + any flavor chips
• Vanilla frosting + peanut butter chips. Sprinkle crushed granola bars over top of each.
• Vanilla or white chocolate chips + white frosting + handful coconut and slivered almonds.
• White chocolate chip + cream cheese frosting and chop up red cherries and green ones for Christmas. You will need to drain the cherries very well and put them on a couple of paper towels to get the last drop of liquid out of them. Call this fudge Christmas Fudge Cup.
• Peanut Butter chips + chocolate frosting (tastes like Reese's Peanut Butter Cup.)
Make this in a peanut butter cookie cup. Recipe
HERE.
• Lemon Fudge:
lemon frosting + vanilla chips +
Crushed lemon drops or grated lemon peel sprinkled on top
Lemon lovers: Try making this with a lemon (cake mix) cookie cup instead of yellow cake mix.
• Toffee Butterscotch Fudge:
butterscotch chips + Caramel Pecan Frosting
+ 1/2 cup chopped peanuts
+ 1/2 cup toffee bits or chopped Heath bar
Leave some nuts & toffee to sprinkle on top
• Rocky Road Cookie Cups:
Spoon in fudge. Top with a mixture of mini marshmallows, chocolate morsels and chopped nuts or crumbled graham crackers. Place in oven for a couple minutes. The heat will soften them slightly, yet they retain their shape. Pictured below.