Folding

Folding is the act of gently (no fast stirring, no whisking) putting two parts of a batter together. The best way to fold something together is to use a rubber or silicone spatula and fold the bottom part of the batter (often the heavier part) into the top part of the batter (often the lighter part): Cut down through the two layers in the center of the bowl, then sweep the spatula along the bottom of the bowl toward you and lift the spatula up and over again to the center; turn the bowl 90 degrees and repeat until the batter is just combined.