Step 1:
Mountain-fold over this line.
All 3 pieces between the lines are the same size.
Turn the paper.

Done!

Step 8:
Unfold the folds of step 6 and 7

Step 6:
Fold the edge on the left to the prefolded
line indicated by the arrow on the right.

Step 13:
Rotate the edges clockwise a little, see arrows.

Step 12:
Repeat step 11 on the other 3 same places
of the model, see arrows.

Step 11:
Fold the corner indicated by the arrow
to the left.

Step 10:
Insert the edge on the right in the opening
on the left, see arrows.

Step 9:
Valley-fold over this prefolded line.

Step 5:
Prefold over this line.
Then, turn the model.

Step 7:
Fold the edge on the left to the edge indicated
by the arrow on the right.

Step 3:
Valley-fold over this line.

Step 2:
Valley-fold over this line.

Step 4:
Valley-fold over this line.

Step 15:
Fold the edge to the right, do the same
on the other 3 edges of the model.

Step 14:
Push/bend/curl the tip downwards, see arrows.

And this is a DIY video for folding the Origami Soft Ice Cream: