A variation on a cookie that we used to make in a bakery I worked in, years ago. Very yummy! These are made in the microwave oven, super easy.
A variation on a cookie that we used to make in a bakery I worked in, years ago. Very yummy! These are made in the microwave oven, super easy.
Granulated sugar does the heaviest lifting in establishing the structural integrity of these cookies, dissolving completely into the dairy and fat matrix during heating to form a supersaturated solution that recrystallizes upon cooling. Without reaching a proper temperature plateau in the microwave, the sucrose molecules fail to form the micro-crystals necessary for setting, resulting in a runny spread instead of a cohesive mass.
Using a large, microwave-safe glass bowl with a capacity of at least two quarts prevents boil-overs while the sugar-cocoa-milk mixture rapidly expands under high heat. Glass retains thermal energy better than thin plastic, aiding the cook by maintaining residual warmth as the peanut butter and vanilla are stirred in off-heat. Stir vigorously after the initial three-minute interval to disperse lumps of cocoa powder, ensuring uniform heat distribution before the second heating cycle begins.