Preheat the oven to 375 degrees F. Peel, core and slice the apples vertically into 8 slices each. Squeeze the lemon into a bowl of water and add the apple slices to keep from turning brown. In a medium saucepan, mix 1 cup water, 3/4 cup of the sugar, the butter and vanilla. Bring the sugar mixture to a boil over medium heat. Separate each biscuit into 2 layers. Wrap a biscuit layer around a slice of apple, stretching the biscuit slightly to overlap, and seal on the bottom. Place the wrapped slices, sealed-side down, in a 9- by 12- by 2-inch casserole dish. Pour the hot sugar mixture over the apple slices. Mix the remaining 1/4 cup sugar with the cinnamon and sprinkle the mixture over the tops of the wrapped apples. Bake until golden brown, 35 minutes.
Recipe adapted from Home Cooking with Trisha Yearwood (c) Clarkson Potter 2010