I woukld forget he actually reading for now. Still shar ebooks and enjoy them together. Point to the words as you read and let DD spot letters and sounds she might now, and talk of the pictures, etc. But I wouldn't push the sounding out just yet.
Then go through the sounds.
You could buy the Jolly PHonics songs book with CD - about £6 on Amazon IIRR. There are short songs for each of the 48 ltter sounds, set to familiar tunes.
So you start with the individual letter sounds such as s, a, t, etc.
Practise recognising them and writing them - write them in glitter or sand to make it tactile and fun. learn the songs and the actions 9all in theook or poss online too)
Then move onto the longer phonemes such as sh, ch, th, ng, ee, etc - there are songs for all of these, and actions too, in the books and audio CD.
Once she knows some individual sounds you can practise segmenting - robot talk. We use stiff bent arms as robot arms. One arm goes up and then down for each sound, and then we clap them together to say the final word.
sat - s a t
shop - sh o p
soil - s oi l
etc.
For blending words when reading you could use sound buttons. A dot (.) represents asingle short sound and a dash (-) represents a longer sound made of more than one letter. Look at the word and togther put sound buttons beneath them:
sat
. . .
soil
. - . (dash goes under oi to show it is one sound)
Do this as you cover each sound, so they get used to looking for them in words.