1. Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan really well. Don’t skip the flouring step or you’ll have sticking issues with those caramel swirls.
2. Cream the butter and sugar in a mixing bowl until light and fluffy, about 4-5 minutes. This creates air pockets that make your salted caramel cake tender instead of dense. Don’t rush this step.
3. Add the eggs one at a time, beating well after each addition—like really well, about 30 seconds per egg. This ensures everything incorporates smoothly. Stir in the vanilla extract.
4. Combine the dry ingredients (flour, baking powder, and salt) in a separate bowl. Whisk them together so everything’s evenly distributed.
5. Add the dry ingredients gradually to the wet mixture, alternating with milk. Start with flour, then milk, then flour, then milk, ending with flour. Mix just until combined after each addition—don’t overmix.
6. Pour half of the batter into your prepared cake pan and smooth it out gently.
7. Drizzle half of the caramel sauce over the batter in a spiral pattern. Use a butter knife to gently swirl the caramel into the batter with about 5-6 figure-eight motions. Don’t overswirl—you want to see distinct ribbons of caramel.
8. Add the remaining batter on top and smooth it out carefully.
9. Drizzle the remaining caramel sauce over this layer and swirl again gently. The layers create gorgeous marbling when you slice it.
10. Bake for 30-35 minutes, but start checking at 28 minutes. A toothpick inserted into the center should come out clean or with just a few moist crumbs. Aim for cake, not a caramel pocket. Every oven’s different.
11. Cool in the pan for 10 minutes, then turn out onto a wire rack to cool completely. This takes about an hour—be patient or the caramel will slide everywhere.
12. Drizzle with additional caramel sauce once completely cool, then sprinkle generously with sea salt flakes. Those crunchy salt flakes are what make this special.

Nutrition Information (Per Serving, based on 10 servings):

• Calories: 425
• Carbohydrates: 56g
• Protein: 6g
• Fat: 20g
• Fiber: 0.5g
• Sodium: 320mg
• Calcium: 8% DV
• Iron: 8% DV

This cake provides calcium from milk and energy from quality ingredients, with the perfect balance of sweet and salty flavors.

Notes:

• Use thick caramel sauce. Thin caramel will just sink to the bottom instead of creating pretty swirls.
• Don’t overswirl. Just 5-6 gentle swoops is enough. You want to see distinct ribbons of caramel, not tan-colored batter.
• Room temperature ingredients mix better and create a more even, tender crumb. Take your butter, eggs, and milk out 30 minutes before baking.
• Sea salt flakes are non-negotiable. Regular salt doesn’t provide that crunchy texture and clean flavor that makes this special.
• Add salt just before serving if making ahead, so it stays crunchy.
• Check with a toothpick in the cake part, not a caramel pocket, or you’ll think it’s underdone when it’s actually perfect.
• Every oven runs differently, so start checking at 28 minutes even if the recipe says 30-35.

Storage Tips:

• Room temperature: Keep covered for up to 3 days—stays incredibly moist.
• Add fresh salt flakes when serving leftovers since they soften over time.
• Refrigerate if your kitchen is warm, but let it come to room temperature before serving for the best flavor and texture.
• Freezing works okay for unfrosted cake, but the texture of the caramel swirls can change. Wrap really well if freezing.

Serving Suggestions:

• Classic style: Serve as is with the caramel drizzle and sea salt
• Extra decadent: Add a scoop of vanilla ice cream and extra caramel sauce
• With coffee: Perfect alongside espresso or strong coffee
• Whipped cream: Top with lightly sweetened whipped cream for a lighter finish

Mix It Up (Recipe Variations):

Double Salted Caramel: Make salted caramel buttercream frosting instead of just drizzling caramel on top for a proper frosted layer cake.

Apple Salted Caramel: Fold 1 cup diced apples into the batter before adding caramel for a fall-inspired version that tastes like caramel apples.

Chocolate Salted Caramel: Replace 1/4 cup flour with cocoa powder for a chocolate version. The chocolate-caramel-salt combo is incredibly addictive.

Pecan Praline: Sprinkle 1/2 cup chopped toasted pecans between the layers along with the caramel for extra crunch and nutty flavor.

What Makes This Recipe Special:

This salted caramel cake uses a swirling technique that creates beautiful visual ribbons of caramel throughout the tender butter cake. The combination of sweet caramel and flaky sea salt provides the perfect balance that makes each bite more interesting than the last. The layering method ensures caramel throughout the cake rather than just on top. Finishing with sea salt flakes adds textural contrast and that savory note that has made salted caramel one of the most beloved flavor combinations in modern baking.