Please choose the correct solution to the question: How long to bake your Nutella brownie?

Solution1: Preheat the oven to 350 degrees. Bake for about 10 minutes. Stick a toothpick in the center and bake until the toothpick comes up clean.

Solution2: Preheat the oven to 350 degrees. Bake for about 20 minutes. Stick a toothpick in the center and bake until the toothpick comes up clean.

Answer format: solution1/solution2