And yes, more hats. These berets are even easier! (American notation.)

Use a hook size recommended for the yarn you are using. Row 1: Crochet 10 double crochet (dc) in a magic circle. Slip stich (sl) in first dc. Row 2: Chain (ch) 2, dc in same stich, 2 dc in each stitch around, sl in first dc. 20 stitches in round. Row 3: ch 2, dc in same stitch, dc in next stitch, 2 dc in following stitch, repeat, sl in first dc. 30 stitches in round. Row 4: ch 2, dc in same stitch, dc in next X (X=2) stitches, 2dc in following stitch, repeat, sl in first dc. 40 stitches in round. Repeat Row 4, increasing the X number each round. Make rows until the diameter of the circle is 2-3” larger than the hat size. (A size 7 hat has a 7” diameter. For hats for me, I found that my handspan is also my hat size.)
Return: berets should lie flat when not worn, so now we will work in a similar manner but with decreases. Next Row: using the X value from the last row, ch2, dc in next X stitches, dc 2 together, repeat, sl to join. For each following row, decrease X by 1. Continue to add rows until the circle is slightly smaller than the desired hat size. Bind off.