Removing hazelnut skins can be time-consuming, but we’ve got a method that makes it efficient. Toast nuts at 375°F 10 to 12 minutes, stirring twice. Remove from oven; let stand 5 minutes. Then, pour nuts into clean kitchen towel, and gather tightly into a bundle. Rub vigorously with towel to remove skins.
If you want to skip a step, look for skinned hazelnuts. Hint: They’re sometimes called filberts. To toast skinned hazelnuts, set oven to 350°F. Spread skinned hazelnuts on ungreased baking sheet. Bake uncovered 6 to 10 minutes, stirring occasionally, until light brown. Keep a close eye on toasting nuts, as they can quickly become too dark.
No matter what, don’t skip the toasting step. It adds depth of flavor and brings out the richness of the nuts while also giving them a pretty warm brown color.
Microwave ovens vary, so carefully watch ganache mixture during this step. We highly recommend following the directions to help avoid burning.
The trick to cleanly removing brownies from the pan is to line it with foil. To easily do so, flip your pan upside down. Wrap the foil around the bottom of the pan, leaving a little extra length on either side—this length will serve as “handles” later—then cut your piece. When you turn the pan over, you’ll have the perfect-sized and preshaped piece of foil. After baking, allow brownies to cool completely before lifting out of pan by foil “handles.”
To serve clean-cut pieces, cut with sharp knife, and clean blade after each cut.
Nutella® is a chocolate-hazelnut spread usually found in the same aisle as peanut butter, jellies and jams.