Make a chain.

1st Row - Draw yarn through 4th stitch from hook, skip 1 chain, draw through next chain and draw through the 3 loops on hook; chain 1. * Draw loop through the same stitch as last loop, skip 1 chain, draw through next chain, draw through the 3 loops on hook; chain 1. Repeat from * to end of row. Break off.

2nd Row - Fasten yarn through chain of 1st row; chain 4. Draw loop through 1st space, through 2nd space, through the 3 loops on hook; chain 1. * Draw loop through space last used, through next space, through 3 loops on hook; chain 1. Repeat from * to end of row. Break off. Repeat 2nd row.

Source: Woolco Knitting & Crocheting Manual

NOTE: This is not the crochet pineapple shape. This stitch is an antique pineapple stitch first published in crochet books in the early 1900s.