Molten White Chocolate Matcha Cookies with Macadamia Nuts Step-by-step instructions

Before you start

Before starting, make the white chocolate ganache and freeze it into small balls. This step is essential for the molten center. Gather all ingredients and equipment. Measure the flour, baking soda, and salt in a bowl. Chop the macadamia nuts and set aside.

Have the melted butter and sugar ready. Ensure the egg and vanilla are at room temperature for easier mixing. Line a baking sheet with parchment paper. The oven should be preheated to 350°F (175°C) right before baking.

Instructions

Prepare the Ganache Cores

1. 1Make the Ganache Cores
   Place the finely chopped white chocolate in a small bowl. Heat the heavy cream in a small saucepan over medium heat until it just begins to simmer around the edges. Pour the hot cream over the chocolate and let it sit for 2 minutes. Stir gently until smooth and glossy. Cover and refrigerate for about 30 minutes, until firm enough to scoop.
   Look for The ganache should be thick and hold its shape when scooped.
   Tip Chilling the ganache thoroughly makes it easier to roll into balls.
2. 2Scoop the Ganache
   Once the ganache is firm, use a small cookie scoop or spoon to portion into 12 equal balls, about 1 teaspoon each. Place them on a parchment-lined plate and freeze for at least 30 minutes, or until solid.
   Look for The ganache balls should be firm and not sticky.
   Tip Freezing the cores prevents them from melting into the dough during baking.

At this stage, the ganache should be smooth, thick, and firm enough to scoop into balls. The balls should hold their shape when placed on the plate and freeze solid within 30 minutes. The texture should be like a firm truffle, not sticky or soft. If the ganache is too soft, refrigerate it longer before scooping.

Make and Wrap the Dough

3. 3Mix the Dough
   In a large bowl, whisk the melted butter, sugar, and matcha powder together until smooth and well combined. Whisk in the egg and vanilla extract until fully incorporated. Add the flour, baking soda, and salt, and stir with a rubber spatula until just combined. Fold in the chopped macadamia nuts.
   Look for The dough will be thick and slightly sticky, with a uniform green color.
   Tip Whisk the matcha into the butter and sugar first to avoid lumps.
4. 4Wrap the Dough Around the Cores
   Scoop about 2 tablespoons of dough and flatten it into a disc. Place a frozen ganache ball in the center and wrap the dough around it, sealing the edges completely. Roll gently to smooth the ball. Repeat with the remaining dough and ganache.
   Look for Each cookie should be a smooth ball with no visible ganache.
   Tip Keep the ganache frozen until the last moment to prevent melting.
5. 5Chill the Dough Balls
   Place the wrapped cookie balls on a parchment-lined baking sheet. Refrigerate for at least 20 minutes, or up to 24 hours, to firm up the dough.
   Look for The dough balls should be firm to the touch.
   Tip Chilling prevents spreading and keeps the centers molten.

The dough should be a uniform green color, thick but spreadable. When wrapping, the ganache ball should be completely sealed inside the dough with no cracks. The finished cookie balls should be smooth and round. Chilling them makes them firm to the touch, ready for baking. The dough should not be sticky after chilling.

Bake to Perfection

6. 6Bake the Cookies
   Preheat the oven to 350°F (175°C). Place the chilled cookie balls on a parchment-lined baking sheet, spacing them about 2 inches apart. Bake for 10 minutes, until the edges are lightly golden but the tops are still vibrant green and soft.
   Look for The edges will look set and slightly cracked, while the centers remain pale green.
   Safe temperature 160°F (71°C) internal temperature (egg dishes)
   Tip Do not overbake; the centers should look slightly underdone to stay molten.
7. 7Cool and Serve
   Let the cookies cool on the baking sheet for 5 minutes. They will continue to set as they cool. Transfer to a wire rack and serve warm, while the centers are still flowing.
   Look for The cookies should feel firm at the edges and slightly soft in the center.
   Tip Serve within 15 minutes for the best molten effect.

The cookies should spread slightly and crack on top, with edges turning light golden. The centers remain vibrant green and soft. The aroma of matcha and butter fills the kitchen.

Letting them cool for 5 minutes on the baking sheet allows the structure to set while keeping the center molten. The final cookies should be slightly crisp at the edges and tender in the middle.

Common mistakes

One common mistake is overmixing the dough, which can develop gluten and make the cookies tough. Mix until just combined. Another is using warm ganache; it will melt into the dough and ruin the molten effect. Always freeze the ganache until solid.

Skipping the chilling step for the wrapped dough can cause excessive spreading. Finally, overbaking results in dry cookies with no lava center; stick to the 10-minute mark and trust that the centers will set as they cool.

How to tell it’s done

The cookies are done when the edges are lightly golden and set, but the centers are still soft and pale green. This typically takes about 10 minutes. To check, gently press the edge of a cookie; it should feel firm, while the center gives slightly.

The internal temperature of the cookie should reach at least 160°F (71°C) to ensure the egg is fully cooked. Avoid overbaking, as the centers will continue to set from residual heat.

• Egg dishes: 160°F (71°C) in the thickest part