On level 1, as you enter the kitchen you'll notice there is a stove. You can turn on the two front burners, and this will count as two separate heat sources. To turn the burners on, just maneuver yourself so the the two front knobs, on the front right on top of the stove, rotate clockwise. You will see the burners glow red. Just cook one side on each burner and it should pop.
NOTE: One person reported this didn't work for them. If this happens to you, you can use the burner and then use the oven right below, or even the toaster on the adjacent counter.