Home made weight gainer

16 oz. 2% milk
2 tablespoons canola oil
3 tablespoons peanut butter
1 banana
1 serving whey protein (example Optimum Nutrition's 100% Whey)
Approx. Total: 820 calories
95 g carbs (40g sugars)
48g fat (but only 10g sat fat, plus lots of Omega 3)
53g protein