Which ingredient is NOT found in fondant?

Fondant is a smooth, pliable icing made primarily from sugar, and its main ingredients typically include confectioners' sugar, glucose, and a small amount of water. Confectioners' sugar gives fondant its sweet flavor and fine texture, while glucose helps to achieve the desired consistency and sheen. Water is added to dissolve the sugar and help the fondant come together.

Egg yolks are not found in traditional fondant recipes. Fondant is known for its sweet taste and smooth texture, making it ideal for covering cakes or creating decorative elements. The inclusion of egg yolks, which are rich and add moisture and richness, is characteristic of other kinds of frostings or confections, such as buttercream or pastry cream, rather than fondant. Therefore, the absence of egg yolks is what makes this option correct.