1Place butter on a wooden board and cut into cubes.
2Place butter on a wooden board and cut into cubes.
3Place butter on a wooden board and cut into cubes.
4In a large bowl, beat the cold, cubed butter with both sugars until creamy and just combined.
5In a large bowl, beat the cold, cubed butter with both sugars until creamy and just combined.
6In a large bowl, beat the cold, cubed butter with both sugars until creamy and just combined.
7Add in the egg, egg yolk, and vanilla extract. Mix just until combined.
8Add in the egg, egg yolk, and vanilla extract. Mix just until combined.
9Add in the egg, egg yolk, and vanilla extract. Mix just until combined.
10In a separate bowl, whisk together the flour, cornstarch, baking soda, baking powder, and salt.
11In a separate bowl, whisk together the flour, cornstarch, baking soda, baking powder, and salt.
12In a separate bowl, whisk together the flour, cornstarch, baking soda, baking powder, and salt.
13Add the dry ingredients to the wet mixture and fold until just combined.
14Add the dry ingredients to the wet mixture and fold until just combined.
15Add the dry ingredients to the wet mixture and fold until just combined.
16Fold in chopped chocolate and walnuts evenly.
17Fold in chopped chocolate and walnuts evenly.
18Fold in chopped chocolate and walnuts evenly.
19Divide the dough into portions, shape them into tall mounds, and place on a tray lined with parchment paper.
20Divide the dough into portions, shape them into tall mounds, and place on a tray lined with parchment paper.
21Divide the dough into portions, shape them into tall mounds, and place on a tray lined with parchment paper.
22Freeze for at least 4–6 hours until solid.
23Freeze for at least 4–6 hours until solid.
24Freeze for at least 4–6 hours until solid.
25When ready to bake, preheat your oven to 200°C.
26When ready to bake, preheat your oven to 200°C.
27When ready to bake, preheat your oven to 200°C.
28Place frozen dough balls spaced apart on a lined baking tray and bake for 10–12 minutes, until the edges are golden and the centers still look slightly underbaked.
29Place frozen dough balls spaced apart on a lined baking tray and bake for 10–12 minutes, until the edges are golden and the centers still look slightly underbaked.
30Place frozen dough balls spaced apart on a lined baking tray and bake for 10–12 minutes, until the edges are golden and the centers still look slightly underbaked.
31Let cookies rest on the tray for 5–10 minutes before transferring.
32Let cookies rest on the tray for 5–10 minutes before transferring.
33Let cookies rest on the tray for 5–10 minutes before transferring.
34Serve warm!
35Serve warm!
36Serve warm!
Ingredients
159 g unsalted butter, cold and cubed
159 g unsalted butter, cold and cubed
159 g unsalted butter, cold and cubed
70 g caster sugar
70 g caster sugar
70 g caster sugar
126 g soft brown sugar
126 g soft brown sugar
126 g soft brown sugar
1 large egg
1 large egg
1 large egg
1 egg yolk
1 egg yolk
1 egg yolk
2 tsp vanilla extract
2 tsp vanilla extract
2 tsp vanilla extract
225 g all-purpose flour
225 g all-purpose flour
225 g all-purpose flour
3 tbsp cornstarch
3 tbsp cornstarch
3 tbsp cornstarch
0.5 tsp baking soda
0.5 tsp baking soda
0.5 tsp baking soda
0.5 tsp baking powder
0.5 tsp baking powder
0.5 tsp baking powder
1 tsp instant coffee powder
1 tsp instant coffee powder
1 tsp instant coffee powder
0.5 tsp salt
0.5 tsp salt
0.5 tsp salt
200 g chopped dark chocolate
200 g chopped dark chocolate
200 g chopped dark chocolate
60 g chopped walnuts
60 g chopped walnuts
60 g chopped walnuts
Equipment
wooden boardknifebowlhand mixerspatulabaking trayparchment paper
Tips
Freeze the dough for at least 4-6 hours or overnight.
Bake at 200°C for 10-12 minutes until edges are golden and centers are slightly underbaked.