1-First Step: Get your pan and oven ready. Start by preheating your oven to 350°F. Grease a small loaf pan or an 8-inch cake pan well, then line it with parchment if you want easy removal. This is a simple step, but it saves a lot of trouble later, especially if you are baking on a busy day and want a clean release. In a small bowl, stir together the guava jam and water until the mixture loosens up a bit. If the jam is especially thick, microwave it for a few seconds before stirring. You want a spoonable swirl mixture that moves easily through the batter without clumping.

2-Second Step: Mix the dry ingredients. In a medium bowl, whisk together the flour, salt, and baking soda. Mixing the dry ingredients first helps the baking soda spread evenly, which gives the cake a more even texture. This step is quick, but it matters because pound cake depends on balance more than speed. If you are baking for someone with gluten sensitivity, use a gluten-free baking blend in place of the flour. The method stays the same, but the batter may need a gentler stir so it keeps a tender crumb.

3-Third Step: Cream the butter and sugar. In a larger bowl, beat the softened butter and sugar together until the mixture looks light and fluffy. This usually takes about 2 to 3 minutes with a hand mixer. Creaming adds air to the batter, which helps keep the Guava Swirl Pound Cake soft instead of heavy. Next, add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract. At this point, the batter should look smooth and pale. If the mixture looks a little curdled, do not worry. It usually comes together once the dry ingredients and sour cream are added.

4-Fourth Step: Add the sour cream and dry mixture. Mix in the sour cream until fully blended. Then add the dry ingredients in two additions, stirring just until combined. Overmixing can make pound cake tough, so stop as soon as you no longer see streaks of flour. The batter should be thick, smooth, and easy to spoon into the pan. If you are working with a dairy-free option, plant-based sour cream works best when it has a thick texture. That helps keep the batter close to the original consistency.

5-Fifth Step: Layer and swirl the guava. Spoon about half of the batter into the prepared pan and smooth it lightly. Add dollops of the guava mixture over the top, then add the remaining batter. Finish with the rest of the guava mixture on top. Use a butter knife or skewer to gently swirl the guava through the cake. Keep the swirling light. A few figure-eight motions are enough. If you stir too much, the swirl will blend into the batter and you will lose those pretty ribbons. The goal is a marbled look that shows up in every slice of Guava Swirl Pound Cake.

6-Sixth Step: Bake until golden and set. Bake for about 40 to 50 minutes, depending on your pan size and oven. The cake is done when the top is golden and a toothpick inserted into the center comes out clean or with just a few moist crumbs. If the top starts browning too fast, loosely cover it with foil during the last part of baking. Let the cake cool in the pan for about 10 to 15 minutes before turning it out onto a rack. Cooling helps the crumb set, so your slices stay neat. If you try to cut it too soon, the middle may feel soft and messy.

7-Final Step: Slice and serve. Once the cake is fully cool, slice and serve it plain or with a light dusting of powdered sugar. It tastes wonderful with tea, coffee, or a glass of cold milk. For a party table, you can add fresh berries on the side or a spoonful of extra warmed guava jam for serving.