Dulce de Leche Butter Cookies

"Every year, I host a cookie exchange. I make the same cookie every year. This year, I wanted to come up with something that would really “wow” the crowd. It’s a tough crowd. These women bring it. I’ve seen cookies that look like they should be framed, not eaten. I went through all of my cookie books trying to find the perfect cookie to make. I couldn’t find exactly what I wanted. I love those butter cookies that come in a tin around the holidays, and thought they’d be perfect sandwiched with a creamy carmel center. Bam, the Dulce de Leche Butter Cookie was born. Did you get that? Dulce de Leche Butter Cookie. Sigh. I love every element of this cookie."