New With Tags. Masterclass Blue Speckled Brownie pan. Introducing a brand new baking essential, the Masterclass Baking Blue Speckled 13" Brownie Pan. Made of durable steel, this non-stick pan is perfect for baking delicious brownies, and its heat resistance of up to 450°F ensures even baking every time. The rectangular shape with dimensions of 13" x 8" x 1" provides ample space for baking, and the set includes a brownie pan that is suitable for electric or gas ovens. With easy-care instructions of hand washing only, this brownie pan is a must-have for any kitchen.