The trick to outrageously rich, superthick brownies?

A high-sided cast-iron skillet.

when you obtain the base recipe down, try one of our four variations (below).

Deep-Dish Skillet Brownies in a cast iron skillet

Credit:Antonis Achilleos; Prop Stylist: Lydia Purcell; Food Stylist:Ruth Blackburn

you might also use our variations as a jumping off point for your own creations.

Prefer raspberries to strawberries?

Use freeze-dried raspberries in our white chocolate variation instead.

White Chocolate-Strawberry Brownies

Credit:Antonis Achilleos; Prop Stylist: Lydia Purcell; Food Stylist:Ruth Blackburn

Or mix up our sweet and salty peanut variation with crushed potato chips instead of pretzels.

Preheat oven to 350F.

Lightly grease a 9- or 10-inch cast-iron skillet with butter.

Wedge of Coconut-Almond-Fudge Brownies

Credit:Antonis Achilleos; Prop Stylist: Lydia Purcell; Food Stylist:Ruth Blackburn

Stir in 1/2 cup of the chocolate chips until melted and smooth, about 1 minute.

Whisk in granulated sugar, brown sugar, vanilla, and eggs until combined and smooth.

Fold in flour, cocoa, kosher salt, and baking soda until just combined.

wedge of Peanut-and-Pretzel Brownies on a blue plate

Credit:Antonis Achilleos; Prop Stylist: Lydia Purcell; Food Stylist:Ruth Blackburn

Stir in remaining 3/4 cup chocolate chips.

Pour batter into prepared skillet.

Cool in skillet on a wire rack 1 hour before serving.

wedge of Salted Caramel-S’mores Brownies on blue plate

Credit:Antonis Achilleos; Prop Stylist: Lydia Purcell; Food Stylist:Ruth Blackburn

Top with ice cream, if desired.

White Chocolate-Strawberry Brownies

Prepare recipe as directed through Step 2.

In Step 3, stir 1/4 cup each choppedwhite chocolateand crushedfreeze-dried strawberriesinto batter with remaining chocolate chips.

Pour batter into skillet; bake as directed.

Remove from oven; top with 1/4 cup each choppedwhite chocolateand crushedfreeze-dried strawberries.

Coconut-Almond-Fudge Skillet Brownies

Prepare recipe as directed through Step 2.

In Step 3, stir 1/4 cup eachshredded coconutandtoasted sliced almondsinto batter with remaining chocolate chips.

Pour batter into skillet; bake as directed.

Remove from oven; top with 1/4 cup eachshredded coconutandtoasted sliced almonds.

Cool 30 minutes; drizzle with 1/4 cuphot fudge.

Peanut-and-Pretzel Brownies

Prepare recipe as directed through Step 2.

In Step 3, stir 3 Tbsp.

choppedhoney-roasted peanutsand 1/4 cup crushedpretzel twistsinto batter with remaining chocolate chips.

Pour batter into skillet, and top mixture with an additional 3 Tbsp.

choppedhoney-roasted peanutsand 3/4 cup crushedpretzel twists.

Salted Caramel-S’mores Brownies

Prepare recipe as directed through Step 2.

In Step 3, stir 1/2 cup eachmini marshmallowsand crushedgraham crackersinto batter with remaining chocolate chips.

Pour batter into skillet; bake as directed.

Remove from oven; top with 1/2 cup eachmini marshmallowsand crushedgraham crackers, pressing to adhere.

Cool 30 minutes; drizzle with 1/4 cupsalted caramel sauce.