1Heat oven to 350ºF. Mix Bisquick and granulated sugar in medium bowl. Stir in milk until blended.
2Pour into ungreased square pan, 9x9x2 inches. Top with apples; sprinkle with lemon juice. Mix brown sugar and cinnamon; sprinkle over apples. Pour boiling water over apples.
3Bake 50 to 60 minutes or until toothpick inserted in center comes out clean. Serve warm with whipped cream.