Good-Cooking - Southern Pecan Cheesecake

Ingredients

• 1 1/2 cups quick oats
• 1/2 cup finely chopped pecans
• 1/2 cup brown sugar
• 1/3 cup melted butter
• 40 ounces cream cheese, softened
• 1 2/3 cups light brown sugar
• 5 eggs
• 1 teaspoon vanilla extract
• 2 cups chopped pecans, divided