Cheesecake Bars

Bahan-bahan (16 porsi)

• 1¼ cups graham cracker crumbs, (from 10 whole crackers)
• 4 tablespoons unsalted butter, (melted)
• ¼ cup (packed) dark brown sugar
• 1/8 teaspoon salt
• 16 oz (two 8-oz packages) cream cheese, at room temperature
• 1 cup granulated sugar
• 1½ tablespoons all-purpose flour
• ¼ cup sour cream
• 3 large eggs
• 2½ teaspoons vanilla extract
• ½ teaspoon packed freshly grated lemon zest, (from 1 lemon)
• 1 teaspoon lemon juice
• ⅛ teaspoon salt