|Unsifted all purpose flour||2 Cup (32 tbs)|
|Water||2 Cup (32 tbs)|
|Salt||1 Cup (16 tbs)|
|Cooking oil||1 Tablespoon|
|Cornstarch||1⁄2 Cup (8 tbs)|
|Food coloring||1 Drop|
Combine flour, salt, cornstarch and alum in 2-quart glass bowl; gradually stir in water and oil until just about smooth.
Microwave on High, uncovered, 4 1/2 to 5 minutes or until mixture is very thick, stirring every minute (mixture will be lumpy).
Cool enough to handle.
Turn onto countertop and knead until smooth, about 2 minutes.
Divide dough into sections and knead in food coloring as desired.
Store each color separately in airtight containers in refrigerator.
It keeps for months and is a perfect rainy day diversion to have on hand.