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1
Combine butter, sugar, and molasses in a stand mixer with the paddle attachment until light and fluffy, about 3 minutes.
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2
Meanwhile, whisk together the remaining dry ingredients in a separate bowl.
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3
Add the dry ingredients to the butter mixture in increments, and continue to beat until thoroughly mixed together.
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4
Pour the dough out onto the countertop and divide into 3 pieces.
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5
Press each piece into a disk and wrap in plastic wrap.
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6
Place in the refrigerator and chill for 1 to 2 hours, or up to 3 days.
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7
Adjust the racks to the center of the oven and preheat to 350 degrees F. Line sheet trays with parchment paper.
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8
Spread 2 large pieces of parchment paper out and very lightly flour them.
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9
Place a disk of dough between the parchment sheets and roll out to 1/4-inch thickness.
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10
Repeat with the remaining disks of dough.
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11
Rework all the scraps into balls and re-chill before reusing.
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12
Repeat with all the dough.
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13
Cut out cookies and place on the parchment-lined sheet trays with an offset spatula, leaving 1 inch between each cookie.
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14
Bake the cookies for 10 to 12 minutes.
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15
Cool on the sheet trays for 5 minutes, and then transfer to a cooling rack to continue cooling to room temperature before decorating the cookies with Royal Icing.
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16
Add the egg whites, sugar and lemon juice to a large bowl.
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17
Beat, using a hand mixer, until glossy and stiff, 5 to 6 minutes.
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18
Add food coloring, if using, and mix well.
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19
Place in icing bags with fine tips to decorate cookies.