Sounds good- Reese's Martini

Peanut Butter Cup Martini
3 oz Frangelico® hazelnut liqueur
2 oz DeKuyper® Buttershots liqueur
2 oz Godiva® chocolate liqueur
2 oz half-and-half

Combine ingredients in a shaker with ice, shake, strain into an old-fashioned glass straight up or on the rocks. (Note: you can substitute any chocolate liqueur for the Godiva including dark creme de cacao, Vermeer, Bailey's Irish cream, or Cask & Creme Chocolate Temptation. If you use a cream liqueur you can cut down on the half and half.)

Here's another - with Bailey's
Peanut Butter Cup Martini
1 oz Kahlua® coffee liqueur
1 oz Frangelico® hazelnut liqueur
1 oz Bailey's® Irish cream
5 oz milk
Pour the Kahlua coffee liqueur, Frangelico hazelnut liqueur and Bailey's irish cream into a hurricane glass filled with ice cubes. Fill with milk, stir well, and serve.