Use two commas to set off an interrupter.
SENT , interrupter , ENCE .
Her hair, that was blond, was held back with a hair tie.
Mr Brown, my crazy neighbor, says that we are all very clever.
Then out she went, outside, closing the back door behind her.
Wearing her favorite Sunday clothes, with pink polka dots, covered with her puffy jacket.
I love rocky road ice cream, hard and cold , nice and sticky.