Add oats in blender and blend coarsely.

Take the oats coarse powder in a bowl.

Put sieve on bowl and add flour, baking soda and salt in it.

Sift into a bowl.

Add sugar and mix all.

Add butter and rub it with the other mixture. A breadcrumb like texture will be attained.

Add milk spoon by spoon to make a dough. Remember, don't add all milk together. You may need to add the quantity, more or less, than the one mentioned here in this post.

Once dough is ready, wrap it in cling film & put it in refrigerator for 30 minutes.

After the said period, take the dough out, unwrap and place on a greased butter paper.

Take one more piece of butter paper and put on the dough.

Now start rolling the dough with a rolling pin into a flat disc.

Using cookie cutter, mark cuts in the dough. But before cutting, dip the cookie cutter in flour so that cutter shouldn't stick to flour.

Take out the extra edges and keep aside.

Using the back side of toothpick, mark holes in the cookies as the digestive biscuits look like such only.

Likewise make the cookies with the entire dough.

Arrange cookies, as much can be adjusted in batch, on a baking tray lined with greased butter paper.

Bake in a pre-heated oven @180℃ for 15-17 minutes or until they are slightly golden.

Bring the tray out and put of cooling rack.

Thereafter bake next batch of cookies.

Your digestive biscuits are ready.

Enjoy.