Melt butter in a big pan. Mix with a rubber spatula until milk deposits separate and become amber. Cool the butter in a basin until room temperature.
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Sift flour, baking soda, baking powder, salt, and cinnamon in a medium basin. Set aside.Beat melted butter, brown sugar, and sugar for 2 minutes in a separate bowl on high speed. Mix vanilla and eggs on medium until blended.
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Mix in dry ingredients. Mix slowly until mixed. Mix in butterscotch and chocolate chips. Combine dough by folding.Preheat oven to 350°F. Parchment two cookie sheets. Let the dough rest for 10 minutes to absorb gluten. This aids spreading.
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Use a big cookie scoop (2 tablespoons or 8 ounces). Take a huge scoop of cookie dough. Put six on a baking sheet.
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13 to 15 minutes in the oven. The sides should be brown and shiny. Place it on the tray and let it sit for 5 minutes before moving it to a cooling rack.
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