Heat oven to 325°F. Grease bottom and side of 9-inch springform pan or 9-inch square pan with shortening; lightly flour. In large bowl, beat all gingerbread ingredients except toffee bits with electric mixer on low speed 30 seconds, scraping bowl constantly. Beat on medium speed 3 minutes, scraping bowl occasionally. Stir in 1/2 cup toffee bits. Pour into pan.