Ruggles Reese's Peanut Butter Cup Cheesecake

INGREDIENTS

• 4 1/2 cups crushed Oreo cookies
• 1 cup chopped roasted peanuts
• 1/2 cup butter, melted
• 2 lbs cream cheese, softened
• 5 eggs, at room temperature
• 1 1/2 cups firmly packed brown sugar
• 1 cup smooth peanut butter (not natural-style)
• 1/2 cup whipping cream
• 1 teaspoon vanilla extract
• 12 Reese's Peanut Butter cups, broken into small pieces
• 3 ounces sour cream
• 1/2 cup sugar