STEP 1/15
<First thing to do> Take out butter and eggs at room temperature in advance. Sift the soft flour and cocoa powder in advance. Preheating the oven.
STEP 2/15
Cream butter at room temperature.
STEP 3/15
Add the sugar powder to the creamy butter. Add salt at this time.
STEP 4/15
Add egg yolk and vanilla extract to 2.
STEP 5/15
Add the sifted powder (basic dough-thin flour/chocolate dough-thin flour, cocoa powder) to 3.
STEP 6/15
come together in a lump.
STEP 7/15
Remove the chocolate dough little by little from the basic dough, put it inside, and mix it by hand.
STEP 8/15
Lay the plastic on it and make it into a square pillar shape.
STEP 9/15
Rest in the refrigerator for an hour.
STEP 10/15
Take out the rest of the dough and cut it into regular thicknesses.
STEP 11/15
Push the basic dough and chocolate dough with a rolling pin, respectively.
STEP 12/15
Spread plastic on top of the pushed basic dough with white and top with chocolate dough.
STEP 13/15
Roll the dough by pulling the vinyl from the inside.
STEP 14/15
Rest in the refrigerator for an hour.
STEP 15/15
Place in a preheated oven at 170 degrees and bake for 15 minutes.