The phrase
"microwave safe glass bowl" means that the bowl is designed to be used in a microwave without getting damaged or causing harm to the food or yourself.
Full definition
Begin by melting the 4 ounces of chocolate in
a microwave safe glass bowl in 20 second intervals until smooth.
Melt about one cup of the chips in
a microwave safe glass bowl, starting at 30 seconds, then stir, and if needed, continue to microwave for additional periods of 20 seconds, stirring after each time.
In
a microwave safe glass bowl, melt the butter and coarsely chopped chocolate on 50 % power for 2 minutes.
In
a microwave safe glass bowl, microwave the semi-sweet chocolate for 1 minute on high power.
Set aside a few pieces of chocolate, then microwave the rest in 30 second increments in
a microwave safe glass bowl.
Place the butter and marshmallows in
a microwave safe glass bowl.
In one
microwave safe glass bowl, microwave the white chocolate chips on 50 % power in 30 second increments until melted.