This is a very easy pattern perfect for blankets. I used a size 3.oo crochet hook with 8 ply wool.
Decide how wide you want your blanket to be and chain the number in multiples of 3.
Start with a foundatin row of a multiple of 3 chains to required length
Make 2 double crochet in 3rd chain from the hook
Skip 2 chain
Make 1 single crochet and then 2 double crochet in the same chain
Repeat from * to the end of the row ending with 1 single crochet in the last chain
Chain 2 turn
Make 2 double crochet in 1st single crochet
**Skip the next 2 double crochet
Make single crochet and 2 double crochet in next single crochet **
Repeat from ** across ending with 1 single crochet in top of chain 2
Repeat row 2 till blanket is required length.