In addition to a lobster recipe, every Maine Clambake Mystery contains at least one recipe from the book my grandmother, Ethel McKim, gave me for Christmas in 1984, only a few months before she died. I usually make these cookies at Christmas, but in Torn Asunder, I gave them to Jamie and Zoey's wedding guests because I felt badly about them missing out on the cake.
Preheat oven to 350 degrees (F).
Mix cookie ingredients together using a food processor or mixer.
Cover a cookie sheet with parchment paper.
Spread the cookie dough thinly across the parchment paper; it should be about a quarter inch thick. (My dough patted out to about 13x9-inches. It spreads a little bit while baking.)
Bake in a preheated oven for 15 - 20 minutes.
While the cookie base is baking, melt the chocolate in a double boiler.
when the cookie comes out of the oven, spread the melted chocolate across the top with a rubber spatula. Sprinkle with the chopped nuts.
Do not cut into squares until the cookies and the chocolate are completely cool. Cut into any size you like.
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