Silvanas from House of Silvanas are frozen sandwich cookies composed of two thin cashew-meringue wafers filled with buttercream and coated in fine cookie crumbs, creating a product defined by contrast in texture and temperature. The meringue layers, made from ground cashews and egg whites, provide a light, slightly crisp structure, while the buttercream filling adds richness and a smooth, dense consistency.

The outer crumb coating introduces an additional layer of texture, resulting in a combination of crunch, creaminess, and softness in each bite. A key characteristic of silvanas is that they are served chilled or frozen, which stabilizes the filling and enhances the overall mouthfeel.

The product is typically offered in several flavor variations such as original, ube, mango, chocolate, mocha, and pandan, each maintaining the same base structure while varying in aroma and sweetness. Silvanas are closely related to the Filipino dessert sans rival, effectively translating the same cashew-meringue and buttercream composition into a smaller, individually portioned format.

Rather than relying on complex ingredients, the product emphasizes balance between nut richness, sweetness, and fat content, positioning it between a cookie and a frozen confection.